【化】 diperchromic acid
across; cross; excessive; over; pass; spend; through
【医】 per-
twin; two
【计】 binary-coded decimal; binary-coded decimal character code
binary-to-decimal conversion; binary-to-hexadecimal conversion
【医】 bi-; bis-; di-; duo-
【化】 chromic acid
【医】 chromic acid; chromium trioxide